Syringe-hydrometer housing.



Patented NW. 6, 1917.

Ware/2%! housing of thlS character ERICK EDELMANN, OF CHICAGO, ILLINOIS.

smmeE-HYnnoMnT R HOUSING.

Specification of Letters Patent.

Patented N 0,V. 6,1917.

Application filed Februgry 26 1916. Serial No. 80,742. i

To all whom-it may concern:

Be it known that I, ERICH EDELMANN, citizen of they United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Syringe-Hydrometer Housings; and I do hereby declare the following scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

y invention relates to improvements in hydrometers, and. has special reference to syringe hydrometer, housings particularly adapted for measuring the. density of liquids in electric batteries. The object of my invention is to provide a syringe hydrometer which shall be more durable than the fragile and easily broken ones now in general use; to provide a syringe hydrometer in which the indicating element shall be ordinarily and .nor-

mally housed within a non-fragile and substantially non-breakable casing; to provide a hydrometer housing which shall have a portion of tough non-brittle material which is relatively non-breakable; to provide a hydrometer housing in which the body portion consists partially of transparent material through which readings can be taken, and a. portion adapted-to be removably and 11011? leakably connected to the transparent or-- tion and consisting of tough substantlally non-breakable material; and to provide a hydrometer housing in which the transparent portion, through which readings are taken,

is practically protected by the non-breakable portions frbm contact with surfaces which might tend' to break or destroy it.

My invention consists in a syringe hydrometer housing of a construction such as will fulfil the above and other objects, and having a glass tubular portion surmounted by a collapsible bulb, and a lower'substantially non-breakable portion adapted to be nonleakably joined to the lower end of the glass portion, said housing as a 'whole belng adapted to receive, contain and protect the hydrometer, all as hereinafter fully described and claimed.

My invention will be readily understood by reference to the accompanying drawing forming part of this specification and in which:

Figure 1-- is a. side elevation of a to be a full, clear, and exact de- Porting invention.

Fig. 2- is a longitudinal central section ofthe same showing the hydrometer in indicating position in dotted lines.

Fig. 3 is a horizontal section on the line 33 of Fig. 2,.

Myimproved syringe hydrometer hous- 1ng comprises a transparent tubular section A provided with a nozzle Bat its upper end upon which is mounted the greatest diameter syringe hydrometer housing embodying my a collapsible bulb C, of the bulb C being considerably larger than the diameter of the section A. I provide tubular section A with a slightly contracted mouth portion D= arranged to receive the upper end of a tubular tion E is not made of glass as the section A usually is, but is made of a relatively non-breakable substance such as rubber of 'a composition which is preferably somewhat flexible. The section E terminates at its other end in anelo'nga ted spout F of relatively small diameter which'is adapted to be projected into the batteries between the plates thereof, for the'purpose of extracting a quantity of the battery liquid for-testing purposes. The joint between the'sections and A is such that the sections are readily separable and as the material of which the section E is made is somewhat flexible, the joint at this point is readily made tight. This connection is preferably threaded as shown at G. housing'comprising the two sections A and E is the hydrometer H which is of usual construction. 1

I have shown the hydrometer in Fig. -2 in its normal position (when the housing is empty of liquid) in full lines, that is, resting upon the ribs-Lformed in the lower end of the section'E, and as the material of which the section E is made is not hard thecontact of the element with the section does not tend to break the bulb J of the hydrometer.

The main to this construction is that the hydrometer housing can be readily disassembled into its various parts for compactness in packing and shipping. Furthermore, should the section A be broken it is easily renewed at small cost.

In Fig. 1--, I have indicated a su surface by the line M and when tl ie the lower end of the ontained within the section E. This secdevice is laid upon its side thereon, as clearly shown, the upper breakable section A is supported out of contact with the said surface, thus decreasing its liability to breakage to a minimum.

In using my hydrometer housing when assembled as shown, the bulb C is forcibly collapsed to force air out of the hydrometer housing through the nozzle F. The nozzle F is then inserted into the battery liquid and when the bulb is allowed to expand the liquid into which the hydrometer is inserted is drawn up into the section E to fill or substantially fill the same to a level suflicient to float the hydrometer to a point at which its graduated scale is visible through the wall of the tube A.

While I have illustrated my invention in its preferred embodiment it will be understood, of course, that the latter may be changedand varied without departing from the invention as defined in the appended claims.

I claim as my invention:

1. A syringe hydrometer housing comprising two end members composed of a nonfragile flexible material and one of which is cup shaped and designed to incase a hydrometer and an intermediate fragile transparent member, the first members including projecting parts adapted to maintain the intermediate fragile portion out of contact with a plane surface when the device is laid thereon.

2. A syringe hydrometer housing c0rnpris ing a cylindrical transparent member, a collapsible bulb of greater diameter than said member mounted on one end thereof, and a flexible element of less diameter than said member mounted on. the other end of the latter and coacting with said bulb to support said member out of contact with a plane surface when the device is laid thereon.

3. A s ringe hydrometer housing comprising a cy indrical transparent glass portion, a collapsible bulb mounted on one endthereof and a member constituting a portion of the housing and presenting an inner cushion surface, mounted on the other end of said housing and equipped with a spout to be inserted in the liquid, said last named member constituting the container for the hydrometer when the housing is empty, the cushion surface within the same adapted to prevent breakage of the hydrometer in moving the device from place to place, said member coacting withsaid bulb to maintain the glass portion of the housing out of contact with a plane surface when the device is deposited thereon, said bulb being larger than the glass portion.

4. A syringe hydrometer housing including a tubular transparent flexible member connected with one end of said transparent member and having a flexelement, a tubular ible spout, and flexible means attached to the other end of said transparent member coacting with said flexible member to maintain said transparent member out of contact with a plane surface when the device is laid thereon.

5. A syringe hydrometer housing comprising a tubular transparent element, a collapsible bulb detachably connected therewith at one end, and being of larger diameter than said member, a tubular flexible member detachably connected with and receiving the other end of said transparent member and havinga flexible spout to, be inserted in the liquid to be drawn into said housing, said bulb and flexible member relatively positioned to support said transparent member out of contact with a plane surface upon which the housing may be laid, said flexible member constituting the container for liquid in which the hydrometer bulb is to float.

6. A syringe .hydrometer housing comprising a tubular transparent element, a collapsible bulb detachably connected therewith at one end, and being of larger diameter than said member, a tubular flexible member detachably connected with and receiving the other end of said transparent member and having a flexible spout to be inserted in the liquid to be drawn into said housing, said bulb and flexible member relatively, positioned to support said transparent member out of contact with a plane surface upon which the housing may be laid 7. A syringe hydrometer housing comprising a collapsible bulb, a transparent tubular member connected therewith, anda flexible tubular member detachably and non-leakably coupled with said transparent member and having a spout adapted to be inserted in the liquid to be drawn into said housing, said bulb being adapted when collapsed to expel a volume of air substantially equal to the volume contained in said flexible member, whereby upon expansion thereof it will draw in a volume of liquid substantially filling said flexible member, said bulb being of larger diameter than said transparent portion of the housing andcoacting with the flexible portion of the latter to maintain said transparent portion out of contact with 11 plane surface upon which the syringe is 8. A syringe hydrometer comprising in combination a two-part hollow stem, one part being transparent and the other resilia ent, the two parts being detachably secured together end to end, a hydrometer in the stem normally incased and protected by the resilient part ofthe stem and designed to float from the resilient to the transparent part of the stem when liquids are sucked into the stem, a bulb attached to the free end of the transparent part of the stem and of larger diameter than the stem.

9. A syringe hydrometer comprising in combination a two part hollow stem, one part of said stem being transparent, the other part of said stem being made of resilient material and provided with a nozzle, a hydrometer mounted within the stem and incased and protected by the resilient part of the stem when at its lower limit of movement but designed to float upwardly in the stem when liquids are drawn into the stem to enable the hydrometer to be easily read through the transparent portion of the stem,

-a bulb connected with the transparent part of the stem for sucking li uids into the stem and ejecting them theref rom, said bulb and resilient part of the stem being so constructed and arranged that when the syringe hydrometer is laid on its side on a fiat surface the transparent part of the stem will not engage said fiat surface, substantially as shown and described.

10. A syringe hydrometer comprising in combination a two part hollow stem, one part of said stem being transparent, the other part of said stem being made of resilient material and provided with a nozzle, a hydrometer mounted within the stem and incased and protected by the resilient part of the stem when at its lower limit of movement but .designed to float upwardly in the stem when liquids are drawn into the stem to enable the hydrometer to be easily read through the transparent portion of the stem, a bulb connected with the transparent part of the stem for sucking liquids into the stem and ejecting them therefrom, substantially as shown and described.

In testimony whereof I have signed my name in presence of two subscribing witnesses ERICH EDELMANN. lVitnesses M. M. BOYLE, G. M. NEVILLE. 

